Tides Today & Tomorrow in Newburyport (Merrimack River), MA

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Newburyport (Merrimack River), MA.
Next low tide : in 12m at 9:48 am (0.4 ft)
Next high tide : 3:46 pm (8.5 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8440466
Common Questions About Tides

Newburyport (Merrimack River), MA Tides - May 1966

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:148.79:468.73:170.33:47-0.15:377:43Waxing Gibbous1Sun
2Mon10:138.710:409.24:16-0.14:40-0.25:367:44Waxing Gibbous2Mon
3Tue11:088.811:299.55:11-0.65:29-0.25:357:45Full Moon3Tue
4Wed12:008.76:03-0.86:18-0.25:337:46Full Moon4Wed
5Thu12:169.712:488.66:53-1.07:050.05:327:47Full Moon5Thu
6Fri1:029.81:358.47:41-0.97:510.25:317:49Waning Gibbous6Fri
7Sat1:479.62:218.18:28-0.78:370.55:297:50Waning Gibbous7Sat
8Sun2:339.43:087.99:15-0.49:240.85:287:51Waning Gibbous8Sun
9Mon3:199.03:567.610:03-0.110:131.15:277:52Waning Gibbous9Mon
10Tue4:088.64:457.310:530.311:051.45:267:53Third Quarter10Tue
11Wed4:598.35:377.211:460.65:257:54Third Quarter11Wed
12Thu5:538.06:317.112:011.512:400.95:237:55Third Quarter12Thu
13Fri6:497.77:267.212:591.61:351.05:227:56Third Quarter13Fri
14Sat7:457.68:207.31:561.52:271.05:217:57Waning Crescent14Sat
15Sun8:417.59:117.62:511.33:171.05:207:58Waning Crescent15Sun
16Mon9:347.59:577.93:431.14:031.05:197:59Waning Crescent16Mon
17Tue10:227.510:408.24:320.84:471.05:188:00Waning Crescent17Tue
18Wed11:087.611:218.55:170.55:291.05:178:01New Moon18Wed
19Thu11:517.76:010.36:091.05:168:02New Moon19Thu
20Fri12:028.812:337.86:430.06:491.05:158:03New Moon20Fri
21Sat12:429.11:167.87:26-0.17:301.05:158:04New Moon21Sat
22Sun1:259.32:007.88:09-0.38:120.95:148:05Waxing Crescent22Sun
23Mon2:109.42:487.98:55-0.38:590.95:138:06Waxing Crescent23Mon
24Tue2:599.43:387.99:44-0.39:500.95:128:07Waxing Crescent24Tue
25Wed3:529.34:327.910:37-0.210:480.95:118:08First Quarter25Wed
26Thu4:489.25:298.011:33-0.111:510.85:118:09First Quarter26Thu
27Fri5:488.96:288.212:31-0.15:108:10First Quarter27Fri
28Sat6:498.77:288.512:550.71:290.05:098:11First Quarter28Sat
29Sun7:528.58:278.81:590.42:260.05:098:12Waxing Gibbous29Sun
30Mon8:548.39:239.13:000.13:210.05:088:13Waxing Gibbous30Mon
31Tue9:548.210:179.43:58-0.24:140.15:088:14Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8440466)

Common Questions About Newburyport (Merrimack River), MA Tides

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What time does the tide turn (slack tide) in Newburyport (Merrimack River), MA today?

Slack tide in Newburyport (Merrimack River), MA is approximately 12:47 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Newburyport (Merrimack River), MA?

Newburyport (Merrimack River), MA is currently in a transitional phase. Tonight's moon is 75% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Newburyport (Merrimack River), MA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Newburyport (Merrimack River), MA?

Tide predictions for Newburyport (Merrimack River), MA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Newburyport (Merrimack River), MA?

Tide data for Newburyport (Merrimack River), MA is sourced from NOAA Station #8440466. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8440466.

What is the moon phase in Newburyport (Merrimack River), MA tonight?

Tonight the moon over Newburyport (Merrimack River), MA is Waning Gibbous (75% illuminated). This places Newburyport (Merrimack River), MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA